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  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="VOC (volatile organic compounds) at SIRTA Atmospheric Research Observatory" />
  <attribute name="summary" value="VOC (volatile organic compounds) at SIRTA Atmospheric Research Observatory. These measurements are gathered as a part of the following projects ACTRIS, EMEP, GAW-WDCRG and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: ['acetonitrile in air (mole_fraction_of_aceto_nitrile_in_air)', 'benzene in air (mole_fraction_of_benzene_in_air)', 'ethanal in air (mole_fraction_of_ethanal_in_air)', 'ethanal in air (mass_concentration_of_ethanal_in_air)', 'mass_107_organic_compounds in air', 'mass_121_organic_compounds in air', 'mass_59_organic_compounds in air', 'mass_69_organic_compounds in air', 'mass_71_organic_compounds in air', 'mass_73_organic_compounds in air', 'methanol in air (mole_fraction_of_methanol_in_air)', 'monoterpenes in air (mole_fraction_of_monoterpenes_in_air)', 'toluene in air (mole_fraction_of_toluene_in_air)']" />
  <attribute name="keywords" value="&quot;SIRTA Atmospheric Research Observatory&quot; FR0020R acetonitrile benzene ethanal mass_107_organic_compounds mass_121_organic_compounds mass_59_organic_compounds mass_69_organic_compounds mass_71_organic_compounds mass_73_organic_compounds methanol monoterpenes toluene air ACTRIS EMEP GAW-WDCRG mole_fraction_of_aceto_nitrile_in_air mole_fraction_of_benzene_in_air mole_fraction_of_ethanal_in_air mass_concentration_of_ethanal_in_air mole_fraction_of_methanol_in_air mole_fraction_of_monoterpenes_in_air mole_fraction_of_toluene_in_air" />
  <attribute name="id" value="9RXC-9VZY.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="ACTRIS, EMEP, GAW-WDCRG" />
  <attribute name="acknowledgement" value="" />
  <attribute name="doi" value="https://doi.org/10.48597/9RXC-9VZY" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Gros, V., Foliot, L., ACTRIS, EMEP, GAW-WDCRG, 2026, VOC (volatile organic compounds) at SIRTA Atmospheric Research Observatory, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/9RXC-9VZY" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="FR01L &quot;Laboratoire des Sciences du Climat et de l'Environnement&quot; LSCE-CNRS-CEA &quot;CEA Orme des Merisiers&quot; &quot;Bat 701&quot; 91191 Gif-sur-Yvette France" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2026-04-08T07:21:27.157100Z" />
  <attribute name="date_metadata_modified" value="2026-03-24T14:38:09Z" />
  <attribute name="creator_name" value="Valerie Gros, Lorna Foliot" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="valerie.gros@lsce.ipsl.fr, lorna.foliot@lsce.ipsl.fr" />
  <attribute name="creator_institution" value="&quot;Laboratoire des Sciences du Climat et de l'Environnement, SIRTA, LSCE&quot;, &quot;Laboratoire des Sciences du Climat et de l'Environnement, SIRTA, LSCE&quot;" />
  <attribute name="contributor_name" value="Nicolas Pascal" />
  <attribute name="contributor_role" value="data submitter" />
  <attribute name="publisher_type" value="institution" />
  <attribute name="publisher_name" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_institution" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_email" value="ebas@nilu.no" />
  <attribute name="publisher_url" value="https://www.nilu.no/" />
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  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="time_coverage_start" value="2025-01-01T00:00:00Z" />
  <attribute name="time_coverage_end" value="2026-01-01T00:00:00Z" />
  <attribute name="time_coverage_duration" value="P0001-00-00T00:00:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-00T01:00:00" />
  <attribute name="timezone" value="UTC" />
  <attribute name="ebas_data_definition" value="EBAS_1.1" />
  <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="ebas_citation" value="Gros, V., Foliot, L., ACTRIS, EMEP, GAW-WDCRG, 2026, VOC (volatile organic compounds) at SIRTA Atmospheric Research Observatory, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/9RXC-9VZY" />
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  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/9RXC-9VZY" />
  <attribute name="ebas_file_creation" value="2026-04-28T01:35:24.894193Z" />
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  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="2025-01-01T00:00:00.000000Z" />
  <attribute name="ebas_revision_date" value="2026-03-24T14:38:09.000000Z" />
  <attribute name="ebas_version" value="1" />
  <attribute name="ebas_version_description" value="initial revision" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="1y" />
  <attribute name="ebas_resolution_code" value="1h" />
  <attribute name="ebas_sample_duration" value="1h" />
  <attribute name="ebas_orig_time_res" value="321s" />
  <attribute name="ebas_station_code" value="FR0020R" />
  <attribute name="ebas_platform_code" value="FR0020S" />
  <attribute name="ebas_station_name" value="SIRTA Atmospheric Research Observatory" />
  <attribute name="ebas_station_gaw_name" value="SIRTA" />
  <attribute name="ebas_station_other_ids" value="0-250-1001-07151 (WIGOS)" />
  <attribute name="ebas_station_land_use" value="Agricultural" />
  <attribute name="ebas_station_setting" value="Suburban" />
  <attribute name="ebas_station_gaw_type" value="O" />
  <attribute name="ebas_station_wmo_region" type="long" value="6" />
  <attribute name="ebas_station_latitude" type="double" value="48.7089" />
  <attribute name="ebas_station_longitude" type="double" value="2.1487" />
  <attribute name="ebas_station_altitude" value="162.0 m" />
  <attribute name="ebas_measurement_latitude" type="double" value="48.709" />
  <attribute name="ebas_measurement_longitude" type="double" value="2.149" />
  <attribute name="ebas_measurement_altitude" value="162.0 m" />
  <attribute name="ebas_measurement_height" value="6.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_matrix" value="air" />
  <attribute name="ebas_laboratory_code" value="FR01L" />
  <attribute name="ebas_instrument_type" value="PTR-MS" />
  <attribute name="ebas_instrument_name" value="Ionicon_HS-PTR-MS" />
  <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
  <attribute name="ebas_instrument_model" value="High-Sensitivity PTR-QMS" />
  <attribute name="ebas_instrument_serial_number" value="68-08-04" />
  <attribute name="ebas_method_ref" value="FR01L_OVOC_analysis" />
  <attribute name="ebas_standard_method" value="None" />
  <attribute name="ebas_calibration_scale" value="NPL" />
  <attribute name="ebas_calibration_standard_id" value="NPL, Cylinder D600076" />
  <attribute name="ebas_secondary_standard_id" value="SIAD SN D155286 C0583154" />
  <attribute name="ebas_inlet_type" value="Hat or hood" />
  <attribute name="ebas_inlet_description" value="Sample flow rate 5 l/min ; 4 meter stainless tube (1/2&quot; outside)" />
  <attribute name="ebas_detection_limit_expl" value="detection limit equals 3 times the square root of the blank signal, divided by the unnormalized measured sensitivity" />
  <attribute name="ebas_measurement_uncertainty_expl" value="based on the method described in the draft version of the ACTRIS PTRMS guidelines 2022" />
  <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
  <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
  <attribute name="ebas_organization" value="FR01L, Laboratoire des Sciences du Climat et de l'Environnement, LSCE-CNRS-CEA, CEA Orme des Merisiers, Bat 701, , 91191, Gif-sur-Yvette, France" />
  <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCRG" />
  <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
  <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
  <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
  <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
  <attribute name="ebas_originator" value="&quot;Gros, Valerie, valerie.gros@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, SIRTA, CEA Orme des Merisiers, Bat 701, 91191, Gif-sur-Yvette, France&quot;, &quot;Foliot, Lorna, lorna.foliot@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, SIRTA, CEA Orme des Merisiers, Bat 701, 91191, Gif-sur-Yvette, France&quot;" />
  <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
  <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
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  <attribute name="geospatial_lat_units" value="degrees_north" />
  <attribute name="geospatial_lon_units" value="degrees_east" />
  <attribute name="standard_name_vocabulary" value="CF-1.7, ACDD-1.3" />
  <attribute name="history" value="None" />
  <attribute name="creator_url" value="ebas.nilu.no" />
  <attribute name="_CoordSysBuilder" value="ucar.nc2.internal.dataset.conv.CF1Convention" />
  <dimension name="time" length="8760" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="1" />
  <dimension name="qc_acetonitrile_amean_flags" length="1" />
  <dimension name="qc_acetonitrile_ExpUnc2s_flags" length="1" />
  <dimension name="qc_acetonitrile_precision_flags" length="1" />
  <dimension name="qc_benzene_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_benzene_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_benzene_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_benzene_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_benzene_ng_per_m3_precision_flags" length="1" />
  <dimension name="qc_benzene_pmol_per_mol_precision_flags" length="1" />
  <dimension name="qc_ethanal_nmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_ethanal_ug_per_m3_amean_flags" length="1" />
  <dimension name="qc_ethanal_nmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_ethanal_ug_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_ethanal_nmol_per_mol_precision_flags" length="1" />
  <dimension name="qc_ethanal_ug_per_m3_precision_flags" length="1" />
  <dimension name="qc_mass_107_organic_compounds_amean_flags" length="1" />
  <dimension name="qc_mass_107_organic_compounds_ExpUnc2s_flags" length="1" />
  <dimension name="qc_mass_107_organic_compounds_precision_flags" length="1" />
  <dimension name="qc_mass_121_organic_compounds_amean_flags" length="1" />
  <dimension name="qc_mass_121_organic_compounds_ExpUnc2s_flags" length="1" />
  <dimension name="qc_mass_121_organic_compounds_precision_flags" length="1" />
  <dimension name="qc_mass_59_organic_compounds_amean_flags" length="1" />
  <dimension name="qc_mass_59_organic_compounds_ExpUnc2s_flags" length="1" />
  <dimension name="qc_mass_59_organic_compounds_precision_flags" length="1" />
  <dimension name="qc_mass_69_organic_compounds_amean_flags" length="1" />
  <dimension name="qc_mass_69_organic_compounds_ExpUnc2s_flags" length="1" />
  <dimension name="qc_mass_69_organic_compounds_precision_flags" length="1" />
  <dimension name="qc_mass_71_organic_compounds_amean_flags" length="1" />
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  <dimension name="qc_mass_71_organic_compounds_precision_flags" length="1" />
  <dimension name="qc_mass_73_organic_compounds_amean_flags" length="1" />
  <dimension name="qc_mass_73_organic_compounds_ExpUnc2s_flags" length="1" />
  <dimension name="qc_mass_73_organic_compounds_precision_flags" length="1" />
  <dimension name="qc_methanol_amean_flags" length="1" />
  <dimension name="qc_methanol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_methanol_precision_flags" length="1" />
  <dimension name="qc_monoterpenes_amean_flags" length="1" />
  <dimension name="qc_monoterpenes_ExpUnc2s_flags" length="1" />
  <dimension name="qc_monoterpenes_precision_flags" length="1" />
  <dimension name="qc_toluene_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_toluene_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_toluene_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_toluene_pmol_per_mol_ExpUnc2s_flags" length="1" />
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    <attribute name="time_coverage_start" value="2025-01-01T00:30:00Z" />
    <attribute name="time_coverage_end" value="2025-12-31T23:30:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="3600.0" />
    <attribute name="time_coverage_duration" value="P0Y0M364DT23H0M0.000S" />
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    <attribute name="metadata_creation" value="2026-05-18" />
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    <attribute name="long_name" value="time bounds for measurement" />
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    <attribute name="long_name" value="time bounds for ebas metadata intervals" />
  </variable>
  <variable name="v_acetonitrile_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_aceto_nitrile_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_acetonitrile_amean_qc v_acetonitrile_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-24T14:38:09.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
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    <attribute name="ebas_orig_time_res" value="321s" />
    <attribute name="ebas_station_code" value="FR0020R" />
    <attribute name="ebas_platform_code" value="FR0020S" />
    <attribute name="ebas_station_name" value="SIRTA Atmospheric Research Observatory" />
    <attribute name="ebas_station_gaw_name" value="SIRTA" />
    <attribute name="ebas_station_other_ids" value="0-250-1001-07151 (WIGOS)" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
    <attribute name="ebas_station_longitude" type="double" value="2.1487" />
    <attribute name="ebas_station_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.709" />
    <attribute name="ebas_measurement_longitude" type="double" value="2.149" />
    <attribute name="ebas_measurement_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_height" value="6.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="acetonitrile" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="FR01L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="Ionicon_HS-PTR-MS" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="High-Sensitivity PTR-QMS" />
    <attribute name="ebas_instrument_serial_number" value="68-08-04" />
    <attribute name="ebas_method_ref" value="FR01L_OVOC_analysis" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="NPL, Cylinder D600076" />
    <attribute name="ebas_secondary_standard_id" value="SIAD SN D155286 C0583154" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Sample flow rate 5 l/min ; 4 meter stainless tube (1/2&quot; outside)" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="detection limit equals 3 times the square root of the blank signal, divided by the unnormalized measured sensitivity" />
    <attribute name="ebas_measurement_uncertainty_expl" value="based on the method described in the draft version of the ACTRIS PTRMS guidelines 2022" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="FR01L, Laboratoire des Sciences du Climat et de l'Environnement, LSCE-CNRS-CEA, CEA Orme des Merisiers, Bat 701, , 91191, Gif-sur-Yvette, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Gros, Valerie, valerie.gros@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, SIRTA, CEA Orme des Merisiers, Bat 701, 91191, Gif-sur-Yvette, France&quot;, &quot;Foliot, Lorna, lorna.foliot@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, SIRTA, CEA Orme des Merisiers, Bat 701, 91191, Gif-sur-Yvette, France&quot;" />
    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="Negative points within the detection limit kept for low values variability ; Mz_69 mass (isoprene) is the sum of isoprene and furan compounds ; Mz_47 mass (ethanol) is the sum of ethanol and formic acid compounds" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/acetonitrileamountfraction" />
    <attribute name="actris_variable_preferred_term" value="acetonitrile amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/protontransfermassspectrometer" />
    <attribute name="actris_instrument_type_preferred_term" value="proton transfer mass spectrometer" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_acetonitrile_amean" shape="qc_acetonitrile_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_acetonitrile_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_acetonitrile_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_aceto_nitrile_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_acetonitrile_ExpUnc2s_qc v_acetonitrile_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-24T14:38:09.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="321s" />
    <attribute name="ebas_station_code" value="FR0020R" />
    <attribute name="ebas_platform_code" value="FR0020S" />
    <attribute name="ebas_station_name" value="SIRTA Atmospheric Research Observatory" />
    <attribute name="ebas_station_gaw_name" value="SIRTA" />
    <attribute name="ebas_station_other_ids" value="0-250-1001-07151 (WIGOS)" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
    <attribute name="ebas_station_longitude" type="double" value="2.1487" />
    <attribute name="ebas_station_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.709" />
    <attribute name="ebas_measurement_longitude" type="double" value="2.149" />
    <attribute name="ebas_measurement_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_height" value="6.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="acetonitrile" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="FR01L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="Ionicon_HS-PTR-MS" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="High-Sensitivity PTR-QMS" />
    <attribute name="ebas_instrument_serial_number" value="68-08-04" />
    <attribute name="ebas_method_ref" value="FR01L_OVOC_analysis" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="NPL, Cylinder D600076" />
    <attribute name="ebas_secondary_standard_id" value="SIAD SN D155286 C0583154" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Sample flow rate 5 l/min ; 4 meter stainless tube (1/2&quot; outside)" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="detection limit equals 3 times the square root of the blank signal, divided by the unnormalized measured sensitivity" />
    <attribute name="ebas_measurement_uncertainty_expl" value="based on the method described in the draft version of the ACTRIS PTRMS guidelines 2022" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="FR01L, Laboratoire des Sciences du Climat et de l'Environnement, LSCE-CNRS-CEA, CEA Orme des Merisiers, Bat 701, , 91191, Gif-sur-Yvette, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Gros, Valerie, valerie.gros@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, SIRTA, CEA Orme des Merisiers, Bat 701, 91191, Gif-sur-Yvette, France&quot;, &quot;Foliot, Lorna, lorna.foliot@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, SIRTA, CEA Orme des Merisiers, Bat 701, 91191, Gif-sur-Yvette, France&quot;" />
    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="Negative points within the detection limit kept for low values variability ; Mz_69 mass (isoprene) is the sum of isoprene and furan compounds ; Mz_47 mass (ethanol) is the sum of ethanol and formic acid compounds" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/acetonitrileamountfraction" />
    <attribute name="actris_variable_preferred_term" value="acetonitrile amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/protontransfermassspectrometer" />
    <attribute name="actris_instrument_type_preferred_term" value="proton transfer mass spectrometer" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_acetonitrile_ExpUnc2s" shape="qc_acetonitrile_ExpUnc2s_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_acetonitrile_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_acetonitrile_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_aceto_nitrile_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_acetonitrile_precision_qc v_acetonitrile_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-24T14:38:09.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="321s" />
    <attribute name="ebas_station_code" value="FR0020R" />
    <attribute name="ebas_platform_code" value="FR0020S" />
    <attribute name="ebas_station_name" value="SIRTA Atmospheric Research Observatory" />
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    <attribute name="ebas_station_other_ids" value="0-250-1001-07151 (WIGOS)" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
    <attribute name="ebas_station_longitude" type="double" value="2.1487" />
    <attribute name="ebas_station_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.709" />
    <attribute name="ebas_measurement_longitude" type="double" value="2.149" />
    <attribute name="ebas_measurement_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_height" value="6.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="acetonitrile" />
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    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="FR01L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="Ionicon_HS-PTR-MS" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="High-Sensitivity PTR-QMS" />
    <attribute name="ebas_instrument_serial_number" value="68-08-04" />
    <attribute name="ebas_method_ref" value="FR01L_OVOC_analysis" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="NPL, Cylinder D600076" />
    <attribute name="ebas_secondary_standard_id" value="SIAD SN D155286 C0583154" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Sample flow rate 5 l/min ; 4 meter stainless tube (1/2&quot; outside)" />
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    <attribute name="ebas_detection_limit_expl" value="detection limit equals 3 times the square root of the blank signal, divided by the unnormalized measured sensitivity" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Gros, Valerie, valerie.gros@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, SIRTA, CEA Orme des Merisiers, Bat 701, 91191, Gif-sur-Yvette, France&quot;, &quot;Foliot, Lorna, lorna.foliot@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, SIRTA, CEA Orme des Merisiers, Bat 701, 91191, Gif-sur-Yvette, France&quot;" />
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    <attribute name="ebas_comment" value="Negative points within the detection limit kept for low values variability ; Mz_69 mass (isoprene) is the sum of isoprene and furan compounds ; Mz_47 mass (ethanol) is the sum of ethanol and formic acid compounds" />
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    <attribute name="actris_variable_preferred_term" value="acetonitrile amount fraction" />
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    <attribute name="actris_temporal_resolution" value="PT1H" />
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  <variable name="qc_acetonitrile_precision" shape="qc_acetonitrile_precision_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_acetonitrile_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_benzene_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_benzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_benzene_ng_per_m3_amean_qc v_benzene_ng_per_m3_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-24T14:38:09.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="321s" />
    <attribute name="ebas_station_code" value="FR0020R" />
    <attribute name="ebas_platform_code" value="FR0020S" />
    <attribute name="ebas_station_name" value="SIRTA Atmospheric Research Observatory" />
    <attribute name="ebas_station_gaw_name" value="SIRTA" />
    <attribute name="ebas_station_other_ids" value="0-250-1001-07151 (WIGOS)" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
    <attribute name="ebas_station_longitude" type="double" value="2.1487" />
    <attribute name="ebas_station_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.709" />
    <attribute name="ebas_measurement_longitude" type="double" value="2.149" />
    <attribute name="ebas_measurement_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_height" value="6.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="benzene" />
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    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="FR01L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="Ionicon_HS-PTR-MS" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="High-Sensitivity PTR-QMS" />
    <attribute name="ebas_instrument_serial_number" value="68-08-04" />
    <attribute name="ebas_method_ref" value="FR01L_OVOC_analysis" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="NPL, Cylinder D600076" />
    <attribute name="ebas_secondary_standard_id" value="SIAD SN D155286 C0583154" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Sample flow rate 5 l/min ; 4 meter stainless tube (1/2&quot; outside)" />
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    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="detection limit equals 3 times the square root of the blank signal, divided by the unnormalized measured sensitivity" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="FR01L, Laboratoire des Sciences du Climat et de l'Environnement, LSCE-CNRS-CEA, CEA Orme des Merisiers, Bat 701, , 91191, Gif-sur-Yvette, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Gros, Valerie, valerie.gros@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, SIRTA, CEA Orme des Merisiers, Bat 701, 91191, Gif-sur-Yvette, France&quot;, &quot;Foliot, Lorna, lorna.foliot@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, SIRTA, CEA Orme des Merisiers, Bat 701, 91191, Gif-sur-Yvette, France&quot;" />
    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="Negative points within the detection limit kept for low values variability ; Mz_69 mass (isoprene) is the sum of isoprene and furan compounds ; Mz_47 mass (ethanol) is the sum of ethanol and formic acid compounds -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.49." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/benzenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="benzene mass concentration" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/protontransfermassspectrometer" />
    <attribute name="actris_instrument_type_preferred_term" value="proton transfer mass spectrometer" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
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  <variable name="qc_benzene_ng_per_m3_amean" shape="qc_benzene_ng_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_benzene_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_benzene_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_benzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_benzene_pmol_per_mol_amean_qc v_benzene_pmol_per_mol_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-24T14:38:09.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="321s" />
    <attribute name="ebas_station_code" value="FR0020R" />
    <attribute name="ebas_platform_code" value="FR0020S" />
    <attribute name="ebas_station_name" value="SIRTA Atmospheric Research Observatory" />
    <attribute name="ebas_station_gaw_name" value="SIRTA" />
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    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
    <attribute name="ebas_station_longitude" type="double" value="2.1487" />
    <attribute name="ebas_station_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.709" />
    <attribute name="ebas_measurement_longitude" type="double" value="2.149" />
    <attribute name="ebas_measurement_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_height" value="6.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="benzene" />
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    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="FR01L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="Ionicon_HS-PTR-MS" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="High-Sensitivity PTR-QMS" />
    <attribute name="ebas_instrument_serial_number" value="68-08-04" />
    <attribute name="ebas_method_ref" value="FR01L_OVOC_analysis" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="NPL, Cylinder D600076" />
    <attribute name="ebas_secondary_standard_id" value="SIAD SN D155286 C0583154" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Sample flow rate 5 l/min ; 4 meter stainless tube (1/2&quot; outside)" />
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    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="detection limit equals 3 times the square root of the blank signal, divided by the unnormalized measured sensitivity" />
    <attribute name="ebas_measurement_uncertainty_expl" value="based on the method described in the draft version of the ACTRIS PTRMS guidelines 2022" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="FR01L, Laboratoire des Sciences du Climat et de l'Environnement, LSCE-CNRS-CEA, CEA Orme des Merisiers, Bat 701, , 91191, Gif-sur-Yvette, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Gros, Valerie, valerie.gros@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, SIRTA, CEA Orme des Merisiers, Bat 701, 91191, Gif-sur-Yvette, France&quot;, &quot;Foliot, Lorna, lorna.foliot@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, SIRTA, CEA Orme des Merisiers, Bat 701, 91191, Gif-sur-Yvette, France&quot;" />
    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="Negative points within the detection limit kept for low values variability ; Mz_69 mass (isoprene) is the sum of isoprene and furan compounds ; Mz_47 mass (ethanol) is the sum of ethanol and formic acid compounds" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/benzeneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="benzene amount fraction" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_benzene_pmol_per_mol_amean" shape="qc_benzene_pmol_per_mol_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
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  <variable name="meta_benzene_pmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_benzene_ng_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_benzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_benzene_ng_per_m3_ExpUnc2s_qc v_benzene_ng_per_m3_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
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    <attribute name="ebas_orig_time_res" value="321s" />
    <attribute name="ebas_station_code" value="FR0020R" />
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    <attribute name="ebas_station_land_use" value="Agricultural" />
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    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
    <attribute name="ebas_station_longitude" type="double" value="2.1487" />
    <attribute name="ebas_station_altitude" value="162.0 m" />
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    <attribute name="ebas_component" value="benzene" />
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    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
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    <attribute name="ebas_comment" value="Negative points within the detection limit kept for low values variability ; Mz_69 mass (isoprene) is the sum of isoprene and furan compounds ; Mz_47 mass (ethanol) is the sum of ethanol and formic acid compounds -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.49." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/benzenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="benzene mass concentration" />
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    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
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  <variable name="meta_benzene_ng_per_m3_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_benzene_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_benzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
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    <attribute name="ebas_data_level" value="2" />
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    <attribute name="ebas_orig_time_res" value="321s" />
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    <attribute name="ebas_station_gaw_name" value="SIRTA" />
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    <attribute name="ebas_station_land_use" value="Agricultural" />
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    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
    <attribute name="ebas_station_longitude" type="double" value="2.1487" />
    <attribute name="ebas_station_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.709" />
    <attribute name="ebas_measurement_longitude" type="double" value="2.149" />
    <attribute name="ebas_measurement_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_height" value="6.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="benzene" />
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    <attribute name="ebas_laboratory_code" value="FR01L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="Ionicon_HS-PTR-MS" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="High-Sensitivity PTR-QMS" />
    <attribute name="ebas_instrument_serial_number" value="68-08-04" />
    <attribute name="ebas_method_ref" value="FR01L_OVOC_analysis" />
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    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="NPL, Cylinder D600076" />
    <attribute name="ebas_secondary_standard_id" value="SIAD SN D155286 C0583154" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Sample flow rate 5 l/min ; 4 meter stainless tube (1/2&quot; outside)" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="FR01L, Laboratoire des Sciences du Climat et de l'Environnement, LSCE-CNRS-CEA, CEA Orme des Merisiers, Bat 701, , 91191, Gif-sur-Yvette, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
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    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
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    <attribute name="ebas_comment" value="Negative points within the detection limit kept for low values variability ; Mz_69 mass (isoprene) is the sum of isoprene and furan compounds ; Mz_47 mass (ethanol) is the sum of ethanol and formic acid compounds" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/benzeneamountfraction" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_benzene_ng_per_m3_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_benzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_benzene_ng_per_m3_precision_qc v_benzene_ng_per_m3_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
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    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
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    <attribute name="ebas_station_altitude" value="162.0 m" />
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    <attribute name="ebas_measurement_altitude" value="162.0 m" />
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    <attribute name="ebas_regime" value="IMG" />
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    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
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    <attribute name="ebas_comment" value="Negative points within the detection limit kept for low values variability ; Mz_69 mass (isoprene) is the sum of isoprene and furan compounds ; Mz_47 mass (ethanol) is the sum of ethanol and formic acid compounds -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.49." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/benzenemassconcentration" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_benzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version_description" value="initial revision" />
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    <attribute name="ebas_data_level" value="2" />
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    <attribute name="ebas_station_gaw_type" value="O" />
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    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
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    <attribute name="ebas_station_altitude" value="162.0 m" />
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    <attribute name="ebas_regime" value="IMG" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="_FillValue" type="double" value="NaN" />
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    <attribute name="ebas_comment" value="Negative points within the detection limit kept for low values variability ; Mz_69 mass (isoprene) is the sum of isoprene and furan compounds ; Mz_47 mass (ethanol) is the sum of ethanol and formic acid compounds -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.001965. -- Data converted on export from EBAS from 'ug/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 0.50879." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/acetaldehydeamountfraction" />
    <attribute name="actris_variable_preferred_term" value="acetaldehyde amount fraction" />
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    <attribute name="actris_temporal_resolution" value="PT1H" />
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    <attribute name="standard_name" value="status_flag" />
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  <variable name="meta_ethanal_nmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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  <variable name="v_ethanal_ug_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_ethanal_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="v_ethanal_ug_per_m3_amean_qc v_ethanal_ug_per_m3_amean_ebasmetadata" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-24T14:38:09.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="321s" />
    <attribute name="ebas_station_code" value="FR0020R" />
    <attribute name="ebas_platform_code" value="FR0020S" />
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    <attribute name="ebas_station_land_use" value="Agricultural" />
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    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
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    <attribute name="ebas_station_altitude" value="162.0 m" />
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    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
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    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_comment" value="Negative points within the detection limit kept for low values variability ; Mz_69 mass (isoprene) is the sum of isoprene and furan compounds ; Mz_47 mass (ethanol) is the sum of ethanol and formic acid compounds -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.001965." />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethanal_in_air" />
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    <attribute name="_FillValue" type="double" value="NaN" />
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    <attribute name="ebas_comment" value="Negative points within the detection limit kept for low values variability ; Mz_69 mass (isoprene) is the sum of isoprene and furan compounds ; Mz_47 mass (ethanol) is the sum of ethanol and formic acid compounds" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/mass73organiccompoundsamountfraction" />
    <attribute name="actris_variable_preferred_term" value="mass 73 organic compounds amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/protontransfermassspectrometer" />
    <attribute name="actris_instrument_type_preferred_term" value="proton transfer mass spectrometer" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_mass_73_organic_compounds_precision" shape="qc_mass_73_organic_compounds_precision_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_mass_73_organic_compounds_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_methanol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_methanol_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_methanol_amean_qc v_methanol_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-24T14:38:09.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="321s" />
    <attribute name="ebas_station_code" value="FR0020R" />
    <attribute name="ebas_platform_code" value="FR0020S" />
    <attribute name="ebas_station_name" value="SIRTA Atmospheric Research Observatory" />
    <attribute name="ebas_station_gaw_name" value="SIRTA" />
    <attribute name="ebas_station_other_ids" value="0-250-1001-07151 (WIGOS)" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
    <attribute name="ebas_station_longitude" type="double" value="2.1487" />
    <attribute name="ebas_station_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.709" />
    <attribute name="ebas_measurement_longitude" type="double" value="2.149" />
    <attribute name="ebas_measurement_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_height" value="6.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="methanol" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="FR01L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="Ionicon_HS-PTR-MS" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="High-Sensitivity PTR-QMS" />
    <attribute name="ebas_instrument_serial_number" value="68-08-04" />
    <attribute name="ebas_method_ref" value="FR01L_OVOC_analysis" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="NPL, Cylinder D600076" />
    <attribute name="ebas_secondary_standard_id" value="SIAD SN D155286 C0583154" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Sample flow rate 5 l/min ; 4 meter stainless tube (1/2&quot; outside)" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="detection limit equals 3 times the square root of the blank signal, divided by the unnormalized measured sensitivity" />
    <attribute name="ebas_measurement_uncertainty_expl" value="based on the method described in the draft version of the ACTRIS PTRMS guidelines 2022" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="FR01L, Laboratoire des Sciences du Climat et de l'Environnement, LSCE-CNRS-CEA, CEA Orme des Merisiers, Bat 701, , 91191, Gif-sur-Yvette, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Gros, Valerie, valerie.gros@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, SIRTA, CEA Orme des Merisiers, Bat 701, 91191, Gif-sur-Yvette, France&quot;, &quot;Foliot, Lorna, lorna.foliot@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, SIRTA, CEA Orme des Merisiers, Bat 701, 91191, Gif-sur-Yvette, France&quot;" />
    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="Negative points within the detection limit kept for low values variability ; Mz_69 mass (isoprene) is the sum of isoprene and furan compounds ; Mz_47 mass (ethanol) is the sum of ethanol and formic acid compounds" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/methanolamountfraction" />
    <attribute name="actris_variable_preferred_term" value="methanol amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/protontransfermassspectrometer" />
    <attribute name="actris_instrument_type_preferred_term" value="proton transfer mass spectrometer" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_methanol_amean" shape="qc_methanol_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_methanol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_methanol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_methanol_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_methanol_ExpUnc2s_qc v_methanol_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-24T14:38:09.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="321s" />
    <attribute name="ebas_station_code" value="FR0020R" />
    <attribute name="ebas_platform_code" value="FR0020S" />
    <attribute name="ebas_station_name" value="SIRTA Atmospheric Research Observatory" />
    <attribute name="ebas_station_gaw_name" value="SIRTA" />
    <attribute name="ebas_station_other_ids" value="0-250-1001-07151 (WIGOS)" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
    <attribute name="ebas_station_longitude" type="double" value="2.1487" />
    <attribute name="ebas_station_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.709" />
    <attribute name="ebas_measurement_longitude" type="double" value="2.149" />
    <attribute name="ebas_measurement_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_height" value="6.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="methanol" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="FR01L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="Ionicon_HS-PTR-MS" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="High-Sensitivity PTR-QMS" />
    <attribute name="ebas_instrument_serial_number" value="68-08-04" />
    <attribute name="ebas_method_ref" value="FR01L_OVOC_analysis" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="NPL, Cylinder D600076" />
    <attribute name="ebas_secondary_standard_id" value="SIAD SN D155286 C0583154" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Sample flow rate 5 l/min ; 4 meter stainless tube (1/2&quot; outside)" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="detection limit equals 3 times the square root of the blank signal, divided by the unnormalized measured sensitivity" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="FR01L, Laboratoire des Sciences du Climat et de l'Environnement, LSCE-CNRS-CEA, CEA Orme des Merisiers, Bat 701, , 91191, Gif-sur-Yvette, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Gros, Valerie, valerie.gros@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, SIRTA, CEA Orme des Merisiers, Bat 701, 91191, Gif-sur-Yvette, France&quot;, &quot;Foliot, Lorna, lorna.foliot@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, SIRTA, CEA Orme des Merisiers, Bat 701, 91191, Gif-sur-Yvette, France&quot;" />
    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="Negative points within the detection limit kept for low values variability ; Mz_69 mass (isoprene) is the sum of isoprene and furan compounds ; Mz_47 mass (ethanol) is the sum of ethanol and formic acid compounds" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/methanolamountfraction" />
    <attribute name="actris_variable_preferred_term" value="methanol amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/protontransfermassspectrometer" />
    <attribute name="actris_instrument_type_preferred_term" value="proton transfer mass spectrometer" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_methanol_ExpUnc2s" shape="qc_methanol_ExpUnc2s_flags time" type="int">
    <attribute name="units" value="1" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
  </variable>
  <variable name="meta_methanol_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_methanol_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_methanol_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_methanol_precision_qc v_methanol_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-24T14:38:09.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="321s" />
    <attribute name="ebas_station_code" value="FR0020R" />
    <attribute name="ebas_platform_code" value="FR0020S" />
    <attribute name="ebas_station_name" value="SIRTA Atmospheric Research Observatory" />
    <attribute name="ebas_station_gaw_name" value="SIRTA" />
    <attribute name="ebas_station_other_ids" value="0-250-1001-07151 (WIGOS)" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
    <attribute name="ebas_station_longitude" type="double" value="2.1487" />
    <attribute name="ebas_station_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.709" />
    <attribute name="ebas_measurement_longitude" type="double" value="2.149" />
    <attribute name="ebas_measurement_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_height" value="6.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="methanol" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="FR01L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="Ionicon_HS-PTR-MS" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="High-Sensitivity PTR-QMS" />
    <attribute name="ebas_instrument_serial_number" value="68-08-04" />
    <attribute name="ebas_method_ref" value="FR01L_OVOC_analysis" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="NPL, Cylinder D600076" />
    <attribute name="ebas_secondary_standard_id" value="SIAD SN D155286 C0583154" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Sample flow rate 5 l/min ; 4 meter stainless tube (1/2&quot; outside)" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="detection limit equals 3 times the square root of the blank signal, divided by the unnormalized measured sensitivity" />
    <attribute name="ebas_measurement_uncertainty_expl" value="based on the method described in the draft version of the ACTRIS PTRMS guidelines 2022" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="FR01L, Laboratoire des Sciences du Climat et de l'Environnement, LSCE-CNRS-CEA, CEA Orme des Merisiers, Bat 701, , 91191, Gif-sur-Yvette, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Gros, Valerie, valerie.gros@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, SIRTA, CEA Orme des Merisiers, Bat 701, 91191, Gif-sur-Yvette, France&quot;, &quot;Foliot, Lorna, lorna.foliot@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, SIRTA, CEA Orme des Merisiers, Bat 701, 91191, Gif-sur-Yvette, France&quot;" />
    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
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    <attribute name="ebas_comment" value="Negative points within the detection limit kept for low values variability ; Mz_69 mass (isoprene) is the sum of isoprene and furan compounds ; Mz_47 mass (ethanol) is the sum of ethanol and formic acid compounds" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/methanolamountfraction" />
    <attribute name="actris_variable_preferred_term" value="methanol amount fraction" />
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  <variable name="qc_methanol_precision" shape="qc_methanol_precision_flags time" type="int">
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_monoterpenes_amean_qc v_monoterpenes_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-24T14:38:09.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="321s" />
    <attribute name="ebas_station_code" value="FR0020R" />
    <attribute name="ebas_platform_code" value="FR0020S" />
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    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
    <attribute name="ebas_station_longitude" type="double" value="2.1487" />
    <attribute name="ebas_station_altitude" value="162.0 m" />
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    <attribute name="ebas_measurement_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_height" value="6.0 m" />
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    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
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    <attribute name="ebas_method_ref" value="FR01L_OVOC_analysis" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
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    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
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    <attribute name="ebas_comment" value="Negative points within the detection limit kept for low values variability ; Mz_69 mass (isoprene) is the sum of isoprene and furan compounds ; Mz_47 mass (ethanol) is the sum of ethanol and formic acid compounds" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/monoterpenesamountfraction" />
    <attribute name="actris_variable_preferred_term" value="monoterpenes amount fraction" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="_FillValue" type="double" value="NaN" />
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    <attribute name="ebas_version_description" value="initial revision" />
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    <attribute name="ebas_data_level" value="2" />
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    <attribute name="ebas_orig_time_res" value="321s" />
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    <attribute name="ebas_station_gaw_type" value="O" />
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    <attribute name="ebas_instrument_type" value="PTR-MS" />
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    <attribute name="ebas_comment" value="Negative points within the detection limit kept for low values variability ; Mz_69 mass (isoprene) is the sum of isoprene and furan compounds ; Mz_47 mass (ethanol) is the sum of ethanol and formic acid compounds" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="_FillValue" type="double" value="NaN" />
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    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="monoterpenes" />
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    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Gros, Valerie, valerie.gros@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, SIRTA, CEA Orme des Merisiers, Bat 701, 91191, Gif-sur-Yvette, France&quot;, &quot;Foliot, Lorna, lorna.foliot@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, SIRTA, CEA Orme des Merisiers, Bat 701, 91191, Gif-sur-Yvette, France&quot;" />
    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="Negative points within the detection limit kept for low values variability ; Mz_69 mass (isoprene) is the sum of isoprene and furan compounds ; Mz_47 mass (ethanol) is the sum of ethanol and formic acid compounds" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/monoterpenesamountfraction" />
    <attribute name="actris_variable_preferred_term" value="monoterpenes amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/protontransfermassspectrometer" />
    <attribute name="actris_instrument_type_preferred_term" value="proton transfer mass spectrometer" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_monoterpenes_precision" shape="qc_monoterpenes_precision_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_monoterpenes_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_toluene_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_toluene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_toluene_ng_per_m3_amean_qc v_toluene_ng_per_m3_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-24T14:38:09.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="321s" />
    <attribute name="ebas_station_code" value="FR0020R" />
    <attribute name="ebas_platform_code" value="FR0020S" />
    <attribute name="ebas_station_name" value="SIRTA Atmospheric Research Observatory" />
    <attribute name="ebas_station_gaw_name" value="SIRTA" />
    <attribute name="ebas_station_other_ids" value="0-250-1001-07151 (WIGOS)" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
    <attribute name="ebas_station_longitude" type="double" value="2.1487" />
    <attribute name="ebas_station_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.709" />
    <attribute name="ebas_measurement_longitude" type="double" value="2.149" />
    <attribute name="ebas_measurement_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_height" value="6.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="toluene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="FR01L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="Ionicon_HS-PTR-MS" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="High-Sensitivity PTR-QMS" />
    <attribute name="ebas_instrument_serial_number" value="68-08-04" />
    <attribute name="ebas_method_ref" value="FR01L_OVOC_analysis" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="NPL, Cylinder D600076" />
    <attribute name="ebas_secondary_standard_id" value="SIAD SN D155286 C0583154" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Sample flow rate 5 l/min ; 4 meter stainless tube (1/2&quot; outside)" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="detection limit equals 3 times the square root of the blank signal, divided by the unnormalized measured sensitivity" />
    <attribute name="ebas_measurement_uncertainty_expl" value="based on the method described in the draft version of the ACTRIS PTRMS guidelines 2022" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="FR01L, Laboratoire des Sciences du Climat et de l'Environnement, LSCE-CNRS-CEA, CEA Orme des Merisiers, Bat 701, , 91191, Gif-sur-Yvette, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
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    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Gros, Valerie, valerie.gros@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, SIRTA, CEA Orme des Merisiers, Bat 701, 91191, Gif-sur-Yvette, France&quot;, &quot;Foliot, Lorna, lorna.foliot@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, SIRTA, CEA Orme des Merisiers, Bat 701, 91191, Gif-sur-Yvette, France&quot;" />
    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="Negative points within the detection limit kept for low values variability ; Mz_69 mass (isoprene) is the sum of isoprene and furan compounds ; Mz_47 mass (ethanol) is the sum of ethanol and formic acid compounds -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 4.11." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/toluenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="toluene mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_toluene_ng_per_m3_amean" shape="qc_toluene_ng_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
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  <variable name="meta_toluene_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_toluene_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_toluene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_toluene_pmol_per_mol_amean_qc v_toluene_pmol_per_mol_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-24T14:38:09.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="321s" />
    <attribute name="ebas_station_code" value="FR0020R" />
    <attribute name="ebas_platform_code" value="FR0020S" />
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    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
    <attribute name="ebas_station_longitude" type="double" value="2.1487" />
    <attribute name="ebas_station_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.709" />
    <attribute name="ebas_measurement_longitude" type="double" value="2.149" />
    <attribute name="ebas_measurement_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_height" value="6.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="toluene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="FR01L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="Ionicon_HS-PTR-MS" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="High-Sensitivity PTR-QMS" />
    <attribute name="ebas_instrument_serial_number" value="68-08-04" />
    <attribute name="ebas_method_ref" value="FR01L_OVOC_analysis" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="NPL, Cylinder D600076" />
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    <attribute name="ebas_inlet_type" value="Hat or hood" />
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    <attribute name="ebas_detection_limit_expl" value="detection limit equals 3 times the square root of the blank signal, divided by the unnormalized measured sensitivity" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
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    <attribute name="ebas_comment" value="Negative points within the detection limit kept for low values variability ; Mz_69 mass (isoprene) is the sum of isoprene and furan compounds ; Mz_47 mass (ethanol) is the sum of ethanol and formic acid compounds" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/tolueneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="toluene amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/protontransfermassspectrometer" />
    <attribute name="actris_instrument_type_preferred_term" value="proton transfer mass spectrometer" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
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    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_toluene_pmol_per_mol_amean" shape="qc_toluene_pmol_per_mol_amean_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="units" value="1" />
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  <variable name="meta_toluene_pmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_toluene_ng_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_toluene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
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    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="321s" />
    <attribute name="ebas_station_code" value="FR0020R" />
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    <attribute name="ebas_station_name" value="SIRTA Atmospheric Research Observatory" />
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    <attribute name="ebas_station_land_use" value="Agricultural" />
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    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
    <attribute name="ebas_station_longitude" type="double" value="2.1487" />
    <attribute name="ebas_station_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.709" />
    <attribute name="ebas_measurement_longitude" type="double" value="2.149" />
    <attribute name="ebas_measurement_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_height" value="6.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="toluene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="FR01L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="Ionicon_HS-PTR-MS" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="High-Sensitivity PTR-QMS" />
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    <attribute name="ebas_method_ref" value="FR01L_OVOC_analysis" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
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    <attribute name="ebas_secondary_standard_id" value="SIAD SN D155286 C0583154" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Sample flow rate 5 l/min ; 4 meter stainless tube (1/2&quot; outside)" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_originator" value="&quot;Gros, Valerie, valerie.gros@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, SIRTA, CEA Orme des Merisiers, Bat 701, 91191, Gif-sur-Yvette, France&quot;, &quot;Foliot, Lorna, lorna.foliot@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, SIRTA, CEA Orme des Merisiers, Bat 701, 91191, Gif-sur-Yvette, France&quot;" />
    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
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    <attribute name="ebas_comment" value="Negative points within the detection limit kept for low values variability ; Mz_69 mass (isoprene) is the sum of isoprene and furan compounds ; Mz_47 mass (ethanol) is the sum of ethanol and formic acid compounds -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 4.11." />
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  <variable name="meta_toluene_ng_per_m3_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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  <variable name="v_toluene_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
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    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_toluene_pmol_per_mol_ExpUnc2s_qc v_toluene_pmol_per_mol_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="321s" />
    <attribute name="ebas_station_code" value="FR0020R" />
    <attribute name="ebas_platform_code" value="FR0020S" />
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    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_gaw_type" value="O" />
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    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
    <attribute name="ebas_station_longitude" type="double" value="2.1487" />
    <attribute name="ebas_station_altitude" value="162.0 m" />
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    <attribute name="ebas_measurement_height" value="6.0 m" />
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    <attribute name="ebas_component" value="toluene" />
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    <attribute name="ebas_instrument_name" value="Ionicon_HS-PTR-MS" />
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    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_comment" value="Negative points within the detection limit kept for low values variability ; Mz_69 mass (isoprene) is the sum of isoprene and furan compounds ; Mz_47 mass (ethanol) is the sum of ethanol and formic acid compounds" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="_FillValue" type="double" value="NaN" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_measurement_height" value="6.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="toluene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="FR01L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="Ionicon_HS-PTR-MS" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="High-Sensitivity PTR-QMS" />
    <attribute name="ebas_instrument_serial_number" value="68-08-04" />
    <attribute name="ebas_method_ref" value="FR01L_OVOC_analysis" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="NPL, Cylinder D600076" />
    <attribute name="ebas_secondary_standard_id" value="SIAD SN D155286 C0583154" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Sample flow rate 5 l/min ; 4 meter stainless tube (1/2&quot; outside)" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="detection limit equals 3 times the square root of the blank signal, divided by the unnormalized measured sensitivity" />
    <attribute name="ebas_measurement_uncertainty_expl" value="based on the method described in the draft version of the ACTRIS PTRMS guidelines 2022" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="FR01L, Laboratoire des Sciences du Climat et de l'Environnement, LSCE-CNRS-CEA, CEA Orme des Merisiers, Bat 701, , 91191, Gif-sur-Yvette, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Gros, Valerie, valerie.gros@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, SIRTA, CEA Orme des Merisiers, Bat 701, 91191, Gif-sur-Yvette, France&quot;, &quot;Foliot, Lorna, lorna.foliot@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, SIRTA, CEA Orme des Merisiers, Bat 701, 91191, Gif-sur-Yvette, France&quot;" />
    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="Negative points within the detection limit kept for low values variability ; Mz_69 mass (isoprene) is the sum of isoprene and furan compounds ; Mz_47 mass (ethanol) is the sum of ethanol and formic acid compounds" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/tolueneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="toluene amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/protontransfermassspectrometer" />
    <attribute name="actris_instrument_type_preferred_term" value="proton transfer mass spectrometer" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_toluene_pmol_per_mol_precision" shape="qc_toluene_pmol_per_mol_precision_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_toluene_pmol_per_mol_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="time" shape="time" type="double">
    <attribute name="long_name" value="time of measurement" />
    <attribute name="standard_name" value="time" />
    <attribute name="units" value="days since 1900-01-01T00:00:00Z" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="standard" />
    <attribute name="bounds" value="time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
  <variable name="metadata_time" shape="metadata_time" type="double">
    <attribute name="long_name" value="time of ebas metadata intervals" />
    <attribute name="standard_name" value="time" />
    <attribute name="units" value="days since 1900-01-01T00:00:00Z" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="standard" />
    <attribute name="bounds" value="metadata_time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
</netcdf>
